The initialized message is best described as: — MCP Professional Practice — Claude Cert Academy

The initialized message is best described as:

• A request from the client that expects a result from the server
• A notification from the client — no server response is expected
• A response from the client to the server's InitializeResult
• A broadcast to all connected servers

Answer: A notification from the client — no server response is expected

initialized is a JSON-RPC notification (no id field) sent by the client after receiving InitializeResult. No response from the server is expected or permitted. This is a frequent exam trap — candidates confuse it with a request-response exchange.

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